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73005152 | 1 | /********************************************************************** |
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2 | * Copyright (c) 2005, 2008 IBM Corporation and others. |
3 | * Copyright (c) 2011, 2012 Ericsson. | |
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4 | * All rights reserved. This program and the accompanying materials |
5 | * are made available under the terms of the Eclipse Public License v1.0 | |
6 | * which accompanies this distribution, and is available at | |
7 | * http://www.eclipse.org/legal/epl-v10.html | |
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8 | * |
9 | * Contributors: | |
10 | * IBM - Initial API and implementation | |
11 | * Bernd Hufmann - Updated for TMF | |
12 | **********************************************************************/ | |
13 | package org.eclipse.linuxtools.tmf.ui.views.uml2sd; | |
14 | ||
15 | import java.util.ArrayList; | |
16 | ||
17 | import org.eclipse.jface.viewers.ISelection; | |
18 | import org.eclipse.jface.viewers.ISelectionChangedListener; | |
19 | import org.eclipse.jface.viewers.ISelectionProvider; | |
20 | import org.eclipse.jface.viewers.SelectionChangedEvent; | |
21 | ||
22 | /** | |
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23 | * <p> |
24 | * Informs all registered listeners of graph node selection change in the Frame. | |
25 | * </p> | |
73005152 | 26 | * |
df0b8ff4 | 27 | * @version 1.0 |
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28 | * @author sveyrier |
29 | * | |
30 | */ | |
31 | public class SDWidgetSelectionProvider implements ISelectionProvider { | |
32 | ||
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33 | // ------------------------------------------------------------------------ |
34 | // Attributes | |
35 | // ------------------------------------------------------------------------ | |
36 | ||
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37 | /** |
38 | * The listener list | |
39 | */ | |
40 | protected ArrayList<ISelectionChangedListener> listenerList = null; | |
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41 | /** |
42 | * The current selection | |
43 | */ | |
44 | protected ISelection currentSelection = null; | |
45 | ||
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46 | // ------------------------------------------------------------------------ |
47 | // Constructor | |
48 | // ------------------------------------------------------------------------ | |
49 | /** | |
50 | * Standard constructor | |
51 | */ | |
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52 | protected SDWidgetSelectionProvider() { |
53 | listenerList = new ArrayList<ISelectionChangedListener>(); | |
54 | } | |
55 | ||
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56 | // ------------------------------------------------------------------------ |
57 | // Methods | |
58 | // ------------------------------------------------------------------------ | |
59 | ||
60 | /* | |
61 | * (non-Javadoc) | |
62 | * @see org.eclipse.jface.viewers.ISelectionProvider#addSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener) | |
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63 | */ |
64 | @Override | |
65 | public void addSelectionChangedListener(ISelectionChangedListener listener) { | |
66 | if (!listenerList.contains(listener)) | |
67 | listenerList.add(listener); | |
68 | } | |
69 | ||
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70 | /* |
71 | * (non-Javadoc) | |
72 | * @see org.eclipse.jface.viewers.ISelectionProvider#removeSelectionChangedListener(org.eclipse.jface.viewers.ISelectionChangedListener) | |
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73 | */ |
74 | @Override | |
75 | public void removeSelectionChangedListener(ISelectionChangedListener listener) { | |
76 | listenerList.remove(listener); | |
77 | } | |
78 | ||
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79 | /* |
80 | * (non-Javadoc) | |
81 | * @see org.eclipse.jface.viewers.ISelectionProvider#setSelection(org.eclipse.jface.viewers.ISelection) | |
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82 | */ |
83 | @Override | |
84 | public void setSelection(ISelection selection) { | |
85 | currentSelection = selection; | |
86 | for (int i = 0; i < listenerList.size(); i++) { | |
87 | ISelectionChangedListener list = (ISelectionChangedListener) listenerList.get(i); | |
88 | list.selectionChanged(new SelectionChangedEvent(this, currentSelection)); | |
89 | } | |
90 | } | |
91 | ||
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92 | /* |
93 | * (non-Javadoc) | |
94 | * @see org.eclipse.jface.viewers.ISelectionProvider#getSelection() | |
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95 | */ |
96 | @Override | |
97 | public ISelection getSelection() { | |
98 | return currentSelection; | |
99 | } | |
100 | ||
101 | } |